| 摘要 |
A locking doorknob which cognizes finger print, the detecting sensor of finger print of the present invention is installed on the spot of the doorknob that a thumb or other fingers are placed naturally. the location of the detecting sensor of finger print is changed at the discretion of a user. As soon as a user holds the doorknob, his finger print is cognized and searched. If the finger print corresponds to the finger print input before, the locking is to be dissolved and the doorknob is turned to open the door. Recognition and opening the door are performed at a time. |
